As nouns the difference between piano and harp
is that
piano is a keyboard musical instrument, usually ranging over seven octaves, with white and black keys, played by pressing these keys, causing hammers to strike strings while
harp is a musical instrument consisting of an upright frame strung with strings that are stroked or plucked with the fingers.
As an adjective piano
is soft, quiet.
As an adverb piano
is softly, as a musical direction (abbreviated to
p. in sheet music).
As a verb harp is
usually with
on To repeatedly mention a subject.
As a proper noun Harp is
{{surname|A=An|occupational|from=occupations}} for a player of the harp.